nostr:npub15mlsk26z49ynfwv9m0ncuwzpkzr0nuyvjazjv7mg0l66xwjq2z2sez2w4s In my work with xScope and Notchmeister, I have noticed that global event monitors have a lot of CPU overhead (they sniff a lot of event traffic). Maybe one of them has snuck into NSWindow or NSView?

https://developer.apple.com/documentation/appkit/nsevent/1535472-addglobalmonitorforeventsmatchin?language=objc